Point-based rendering has been
a topic of interest in computer graphics research for some time [1]}.
Over the past decades two orthogonal approaches have been emerged [2]}.
The first major approach is the rendering of points as oriented discs, which are usually called splats or surfels [3]},
with the radius of each disc being precomputed from the point cloud density.
To get rid of visible artifacts between neighboring splats, the discs are rendered with a Gaussian alpha-mask and then combined by a normalizing blend function [4]}, [5]}, [6]}.
Further extensions to surfel rendering exist, for example, Auto Splats, a technique to automatically compute oriented and sized splats [7]}.
In recent years, deep learning-based approaches have been presented that improve image quality of surfel rendering, especially along sharp edges [8]}, [9]}.
